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Fix various mysql data type conversions (#3554)

This commit is contained in:
Mike Danko 2017-12-12 16:22:11 -05:00 committed by Daniel Nelson
parent d7d224d511
commit df9c7590b3
2 changed files with 54 additions and 288 deletions
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321
plugins/inputs/mysql/mysql.go
View File

@ -169,182 +169,6 @@ func (m *Mysql) Gather(acc telegraf.Accumulator) error {
return nil
}
type mapping struct {
onServer string
inExport string
}
var mappings = []*mapping{
{
onServer: "Aborted_",
inExport: "aborted_",
},
{
onServer: "Bytes_",
inExport: "bytes_",
},
{
onServer: "Com_",
inExport: "commands_",
},
{
onServer: "Created_",
inExport: "created_",
},
{
onServer: "Handler_",
inExport: "handler_",
},
{
onServer: "Innodb_",
inExport: "innodb_",
},
{
onServer: "Key_",
inExport: "key_",
},
{
onServer: "Open_",
inExport: "open_",
},
{
onServer: "Opened_",
inExport: "opened_",
},
{
onServer: "Qcache_",
inExport: "qcache_",
},
{
onServer: "Table_",
inExport: "table_",
},
{
onServer: "Tokudb_",
inExport: "tokudb_",
},
{
onServer: "Threads_",
inExport: "threads_",
},
{
onServer: "Access_",
inExport: "access_",
},
{
onServer: "Aria__",
inExport: "aria_",
},
{
onServer: "Binlog__",
inExport: "binlog_",
},
{
onServer: "Busy_",
inExport: "busy_",
},
{
onServer: "Connection_",
inExport: "connection_",
},
{
onServer: "Delayed_",
inExport: "delayed_",
},
{
onServer: "Empty_",
inExport: "empty_",
},
{
onServer: "Executed_",
inExport: "executed_",
},
{
onServer: "Executed_",
inExport: "executed_",
},
{
onServer: "Feature_",
inExport: "feature_",
},
{
onServer: "Flush_",
inExport: "flush_",
},
{
onServer: "Last_",
inExport: "last_",
},
{
onServer: "Master_",
inExport: "master_",
},
{
onServer: "Max_",
inExport: "max_",
},
{
onServer: "Memory_",
inExport: "memory_",
},
{
onServer: "Not_",
inExport: "not_",
},
{
onServer: "Performance_",
inExport: "performance_",
},
{
onServer: "Prepared_",
inExport: "prepared_",
},
{
onServer: "Rows_",
inExport: "rows_",
},
{
onServer: "Rpl_",
inExport: "rpl_",
},
{
onServer: "Select_",
inExport: "select_",
},
{
onServer: "Slave_",
inExport: "slave_",
},
{
onServer: "Slow_",
inExport: "slow_",
},
{
onServer: "Sort_",
inExport: "sort_",
},
{
onServer: "Subquery_",
inExport: "subquery_",
},
{
onServer: "Tc_",
inExport: "tc_",
},
{
onServer: "Threadpool_",
inExport: "threadpool_",
},
{
onServer: "wsrep_",
inExport: "wsrep_",
},
{
onServer: "Uptime_",
inExport: "uptime_",
},
}
var (
// status counter
generalThreadStates = map[string]uint32{
@ -717,9 +541,8 @@ func (m *Mysql) gatherGlobalVariables(db *sql.DB, serv string, acc telegraf.Accu
fields[key] = string(val)
tags[key] = string(val)
}
// parse value, if it is numeric then save, otherwise ignore
if floatVal, ok := parseValue(val); ok {
fields[key] = floatVal
if value, ok := parseValue(val); ok {
fields[key] = value
}
// Send 20 fields at a time
if len(fields) >= 20 {
@ -769,7 +592,7 @@ func (m *Mysql) gatherSlaveStatuses(db *sql.DB, serv string, acc telegraf.Accumu
}
// range over columns, and try to parse values
for i, col := range cols {
// skip unparsable values
col = strings.ToLower(col)
if value, ok := parseValue(*vals[i].(*sql.RawBytes)); ok {
fields["slave_"+col] = value
}
@ -820,98 +643,36 @@ func (m *Mysql) gatherBinaryLogs(db *sql.DB, serv string, acc telegraf.Accumulat
// the mappings of actual names and names of each status to be exported
// to output is provided on mappings variable
func (m *Mysql) gatherGlobalStatuses(db *sql.DB, serv string, acc telegraf.Accumulator) error {
// If user forgot the '/', add it
if strings.HasSuffix(serv, ")") {
serv = serv + "/"
} else if serv == "localhost" {
serv = ""
}
// run query
rows, err := db.Query(globalStatusQuery)
if err != nil {
return err
}
defer rows.Close()
// parse the DSN and save host name as a tag
servtag := getDSNTag(serv)
tags := map[string]string{"server": servtag}
fields := make(map[string]interface{})
for rows.Next() {
var name string
var val interface{}
var key string
var val sql.RawBytes
err = rows.Scan(&name, &val)
if err != nil {
if err = rows.Scan(&key, &val); err != nil {
return err
}
var found bool
key = strings.ToLower(key)
// iterate over mappings and gather metrics that is provided on mapping
for _, mapped := range mappings {
if strings.HasPrefix(name, mapped.onServer) {
// convert numeric values to integer
i, _ := strconv.Atoi(string(val.([]byte)))
fields[mapped.inExport+name[len(mapped.onServer):]] = i
found = true
}
if value, ok := parseValue(val); ok {
fields[key] = value
}
// Send 20 fields at a time
if len(fields) >= 20 {
acc.AddFields("mysql", fields, tags)
fields = make(map[string]interface{})
}
if found {
continue
}
// search for specific values
switch name {
case "Queries":
i, err := strconv.ParseInt(string(val.([]byte)), 10, 64)
if err != nil {
acc.AddError(fmt.Errorf("E! Error mysql: parsing %s int value (%s)", name, err))
} else {
fields["queries"] = i
}
case "Questions":
i, err := strconv.ParseInt(string(val.([]byte)), 10, 64)
if err != nil {
acc.AddError(fmt.Errorf("E! Error mysql: parsing %s int value (%s)", name, err))
} else {
fields["questions"] = i
}
case "Slow_queries":
i, err := strconv.ParseInt(string(val.([]byte)), 10, 64)
if err != nil {
acc.AddError(fmt.Errorf("E! Error mysql: parsing %s int value (%s)", name, err))
} else {
fields["slow_queries"] = i
}
case "Connections":
i, err := strconv.ParseInt(string(val.([]byte)), 10, 64)
if err != nil {
acc.AddError(fmt.Errorf("E! Error mysql: parsing %s int value (%s)", name, err))
} else {
fields["connections"] = i
}
case "Syncs":
i, err := strconv.ParseInt(string(val.([]byte)), 10, 64)
if err != nil {
acc.AddError(fmt.Errorf("E! Error mysql: parsing %s int value (%s)", name, err))
} else {
fields["syncs"] = i
}
case "Uptime":
i, err := strconv.ParseInt(string(val.([]byte)), 10, 64)
if err != nil {
acc.AddError(fmt.Errorf("E! Error mysql: parsing %s int value (%s)", name, err))
} else {
fields["uptime"] = i
}
}
}
// Send any remaining fields
if len(fields) > 0 {
@ -1059,7 +820,7 @@ func (m *Mysql) GatherProcessListStatuses(db *sql.DB, serv string, acc telegraf.
for s, c := range stateCounts {
fields[newNamespace("threads", s)] = c
}
acc.AddFields("mysql_info_schema", fields, tags)
acc.AddFields("mysql_process_list", fields, tags)
return nil
}
@ -1272,7 +1033,7 @@ func (m *Mysql) gatherInfoSchemaAutoIncStatuses(db *sql.DB, serv string, acc tel
fields["auto_increment_column"] = incValue
fields["auto_increment_column_max"] = maxInt
acc.AddFields("mysql_info_schema", fields, tags)
acc.AddFields("mysql_table_schema", fields, tags)
}
return nil
}
@ -1287,21 +1048,19 @@ func (m *Mysql) gatherInnoDBMetrics(db *sql.DB, serv string, acc telegraf.Accumu
}
defer rows.Close()
var key string
var val sql.RawBytes
// parse DSN and save server tag
servtag := getDSNTag(serv)
tags := map[string]string{"server": servtag}
fields := make(map[string]interface{})
for rows.Next() {
var key string
var val sql.RawBytes
if err := rows.Scan(&key, &val); err != nil {
return err
}
key = strings.ToLower(key)
// parse value, if it is numeric then save, otherwise ignore
if floatVal, ok := parseValue(val); ok {
fields[key] = floatVal
if value, ok := parseValue(val); ok {
fields[key] = value
}
// Send 20 fields at a time
if len(fields) >= 20 {
@ -1671,23 +1430,17 @@ func (m *Mysql) gatherTableSchema(db *sql.DB, serv string, acc telegraf.Accumula
tags["schema"] = tableSchema
tags["table"] = tableName
acc.AddFields(newNamespace("info_schema", "table_rows"),
map[string]interface{}{"value": tableRows}, tags)
acc.AddFields("mysql_table_schema",
map[string]interface{}{"rows": tableRows}, tags)
dlTags := copyTags(tags)
dlTags["component"] = "data_length"
acc.AddFields(newNamespace("info_schema", "table_size", "data_length"),
map[string]interface{}{"value": dataLength}, dlTags)
acc.AddFields("mysql_table_schema",
map[string]interface{}{"data_length": dataLength}, tags)
ilTags := copyTags(tags)
ilTags["component"] = "index_length"
acc.AddFields(newNamespace("info_schema", "table_size", "index_length"),
map[string]interface{}{"value": indexLength}, ilTags)
acc.AddFields("mysql_table_schema",
map[string]interface{}{"index_length": indexLength}, tags)
dfTags := copyTags(tags)
dfTags["component"] = "data_free"
acc.AddFields(newNamespace("info_schema", "table_size", "data_free"),
map[string]interface{}{"value": dataFree}, dfTags)
acc.AddFields("mysql_table_schema",
map[string]interface{}{"data_free": dataFree}, tags)
versionTags := copyTags(tags)
versionTags["type"] = tableType
@ -1695,24 +1448,34 @@ func (m *Mysql) gatherTableSchema(db *sql.DB, serv string, acc telegraf.Accumula
versionTags["row_format"] = rowFormat
versionTags["create_options"] = createOptions
acc.AddFields(newNamespace("info_schema", "table_version"),
map[string]interface{}{"value": version}, versionTags)
acc.AddFields("mysql_table_schema_version",
map[string]interface{}{"table_version": version}, versionTags)
}
}
return nil
}
// parseValue can be used to convert values such as "ON","OFF","Yes","No" to 0,1
func parseValue(value sql.RawBytes) (float64, bool) {
if bytes.Compare(value, []byte("Yes")) == 0 || bytes.Compare(value, []byte("ON")) == 0 {
func parseValue(value sql.RawBytes) (interface{}, bool) {
if bytes.EqualFold(value, []byte("YES")) || bytes.Compare(value, []byte("ON")) == 0 {
return 1, true
}
if bytes.Compare(value, []byte("No")) == 0 || bytes.Compare(value, []byte("OFF")) == 0 {
if bytes.EqualFold(value, []byte("NO")) || bytes.Compare(value, []byte("OFF")) == 0 {
return 0, true
}
n, err := strconv.ParseFloat(string(value), 64)
return n, err == nil
if val, err := strconv.ParseInt(string(value), 10, 64); err == nil {
return val, true
}
if val, err := strconv.ParseFloat(string(value), 64); err == nil {
return val, true
}
if len(string(value)) > 0 {
return string(value), true
}
return nil, false
}
// findThreadState can be used to find thread state by command and plain state

21
plugins/inputs/mysql/mysql_test.go
View File

@ -127,26 +127,29 @@ func TestMysqlDNSAddTimeout(t *testing.T) {
}
}
}
func TestParseValue(t *testing.T) {
testCases := []struct {
rawByte sql.RawBytes
value float64
output interface{}
boolValue bool
}{
{sql.RawBytes("Yes"), 1, true},
{sql.RawBytes("No"), 0, false},
{sql.RawBytes("123"), int64(123), true},
{sql.RawBytes("abc"), "abc", true},
{sql.RawBytes("10.1"), 10.1, true},
{sql.RawBytes("ON"), 1, true},
{sql.RawBytes("OFF"), 0, false},
{sql.RawBytes("ABC"), 0, false},
{sql.RawBytes("OFF"), 0, true},
{sql.RawBytes("NO"), 0, true},
{sql.RawBytes("YES"), 1, true},
{sql.RawBytes("No"), 0, true},
{sql.RawBytes("Yes"), 1, true},
{sql.RawBytes(""), nil, false},
}
for _, cases := range testCases {
if value, ok := parseValue(cases.rawByte); value != cases.value && ok != cases.boolValue {
t.Errorf("want %d with %t, got %d with %t", int(cases.value), cases.boolValue, int(value), ok)
if got, ok := parseValue(cases.rawByte); got != cases.output && ok != cases.boolValue {
t.Errorf("for %s wanted %t, got %t", string(cases.rawByte), cases.output, got)
}
}
}
func TestNewNamespace(t *testing.T) {
testCases := []struct {
words []string